* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: #E6EBF2;
    color: #243447;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9000;
    background: rgba(245,247,251,0.94);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 24px rgba(56,92,138,0.10);
}

.header-main {
    background: rgba(245,247,251,0.94);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 76px;
}

.logo,
.drawer-logo {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
}

.logo img {
    max-height: 52px;
    width: auto;
    display: block;
}

.drawer-logo img,
.footer-brand img {
    max-height: 52px;
    width: auto;
    display: block;
}

.nav-core {
    flex: 1 1 auto;
    display: flex;
    justify-content: center;
    gap: 24px;
    white-space: nowrap;
    flex-wrap: nowrap;
}

.nav-core a {
    color: #4E5F7A;
    position: relative;
    font-weight: 600;
    padding: 8px 4px;
    transition: color .2s ease;
}

.nav-core a:hover,
.nav-core a.active {
    color: #289CFF;
}

.nav-core a.active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -12px;
    width: 28px;
    height: 3px;
    border-radius: 999px;
    background: #289CFF;
    transform: translateX(-50%);
}

.register-btn,
.main-btn,
.small-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    color: #FFFFFF;
    border-radius: 999px;
    font-weight: 700;
    box-shadow: 0 12px 28px rgba(40,156,255,0.25);
    border: none;
}

.register-btn {
    min-width: 88px;
    height: 42px;
    padding: 0 22px;
    flex: 0 0 auto;
}

.main-btn {
    padding: 12px 26px;
    margin-top: 10px;
}

.small-btn {
    padding: 8px 18px;
    font-size: 14px;
}

.channel-bar {
    background: rgba(255,255,255,0.78);
    border-top: 1px solid rgba(40,156,255,0.10);
    border-bottom: 1px solid rgba(40,156,255,0.10);
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: thin;
}

.channel-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 10px 18px;
    display: flex;
    gap: 10px;
}

.channel-bar a {
    color: #66788A;
    border-radius: 999px;
    padding: 8px 14px;
    font-size: 14px;
    background: rgba(255,255,255,0.56);
    transition: all .2s ease;
}

.channel-bar a:hover,
.channel-bar a.active {
    color: #289CFF;
    background: rgba(40,156,255,0.10);
}

.site-main {
    padding-top: 132px;
}

.container,
.section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 18px;
}

.banner-slider {
    max-width: 1200px;
    height: 360px;
    margin: 28px auto 36px;
    border-radius: 22px;
    background: #FFFFFF;
    box-shadow: 0 18px 40px rgba(56,92,138,0.12);
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.banner-slider .slide {
    display: none;
    width: 100%;
    height: 100%;
}

.banner-slider .slide.active {
    display: block;
}

.banner-slider img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #FFFFFF;
    display: block;
}

.banner-caption,
.banner-text,
.slide-title,
.slide-desc,
.slide-content,
.slide-card,
.banner-card {
    display: none !important;
}

.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 3;
    border: none;
    width: 42px;
    height: 42px;
    border-radius: 999px;
    background: rgba(255,255,255,0.86);
    color: #289CFF;
    box-shadow: 0 8px 20px rgba(56,92,138,0.16);
    cursor: pointer;
    font-size: 26px;
    line-height: 42px;
}

.slider-prev {
    left: 16px;
}

.slider-next {
    right: 16px;
}

.slider-dots {
    position: absolute;
    left: 50%;
    bottom: 14px;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 3;
}

.slider-dots button {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    border: none;
    background: rgba(40,156,255,0.24);
    cursor: pointer;
    padding: 0;
}

.slider-dots button.active {
    background: #289CFF;
}

h1,
h2,
h3,
.section-title {
    color: #289CFF;
    line-height: 1.35;
}

h1 {
    font-size: clamp(30px, 4vw, 52px);
    margin: 10px 0 18px;
}

h2 {
    font-size: clamp(24px, 3vw, 34px);
    margin: 0 0 16px;
}

h3 {
    font-size: 20px;
    margin: 0 0 10px;
}

p {
    margin: 0 0 14px;
}

.lead {
    color: #66788A;
    font-size: 17px;
}

.eyebrow {
    color: #289CFF;
    font-weight: 700;
    letter-spacing: .04em;
}

.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.notice-card {
    background: rgba(255,255,255,0.92);
    border: 1px solid rgba(40,156,255,0.16);
    box-shadow: 0 14px 36px rgba(56,92,138,0.10);
    border-radius: 22px;
}

.card,
.info-card,
.review-card,
.faq-item,
.notice-card {
    padding: 24px;
}

.grid {
    display: grid;
    gap: 18px;
}

.grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.section-block {
    margin: 44px auto;
}

.guide-card {
    display: grid;
    grid-template-columns: 1.15fr .85fr;
    gap: 26px;
    align-items: center;
    padding: 30px;
}

.content-img,
.zone-card img,
.app-section img,
.inner-hero img,
.image-card img {
    width: 100%;
    max-width: 100%;
    object-fit: contain;
    background: #FFFFFF;
    display: block;
    border-radius: 18px;
}

.content-img {
    max-height: 280px;
}

.image-card {
    overflow: hidden;
}

.image-card img {
    height: 190px;
    padding: 12px;
}

.category-card a,
.text-link {
    color: #289CFF;
    font-weight: 700;
}

.service-overview .card {
    min-height: 220px;
}

.split-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
}

.product-matrix .card {
    min-height: 210px;
}

.zone-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.zone-card {
    overflow: hidden;
}

.zone-card img {
    height: 168px;
    padding: 12px;
}

.zone-card .zone-content {
    padding: 20px;
}

.app-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
}

.app-section .info-card {
    display: grid;
    grid-template-columns: .9fr 1.1fr;
    gap: 18px;
    align-items: center;
}

.app-section img {
    height: 240px;
    padding: 12px;
}

.notice-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.review-card {
    color: #4E5F7A;
}

.review-card strong {
    color: #289CFF;
    display: block;
    margin-bottom: 6px;
}

.faq-list {
    display: grid;
    gap: 16px;
}

.faq-item h3 {
    margin-bottom: 8px;
}

.inner-hero {
    max-width: 1200px;
    margin: 30px auto 40px;
    padding: 34px;
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 28px;
    align-items: center;
    background: rgba(255,255,255,0.86);
    border: 1px solid rgba(40,156,255,0.15);
    border-radius: 28px;
    box-shadow: 0 18px 44px rgba(56,92,138,0.12);
}

.inner-hero img {
    max-height: 300px;
    padding: 12px;
}

.inner-copy p {
    color: #66788A;
    font-size: 17px;
}

.content-panel {
    max-width: 1200px;
    margin: 0 auto 44px;
    padding: 0 18px;
}

.point-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 12px;
}

.point-list li {
    padding-left: 20px;
    position: relative;
    color: #4E5F7A;
}

.point-list li::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #289CFF;
    position: absolute;
    left: 0;
    top: .75em;
}

.floating-service {
    position: fixed;
    right: 18px;
    top: 42%;
    z-index: 60;
    display: grid;
    gap: 8px;
}

.floating-service a,
.floating-service button {
    min-width: 58px;
    padding: 10px 12px;
    border-radius: 16px;
    background: #FFFFFF;
    color: #289CFF;
    border: 1px solid rgba(40,156,255,0.16);
    box-shadow: 0 14px 30px rgba(56,92,138,0.12);
    text-align: center;
    font-weight: 700;
    cursor: pointer;
}

.floating-service a.register-link {
    background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
    color: #FFFFFF;
}

.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: none;
    border-radius: 14px;
    background: rgba(40,156,255,0.10);
    padding: 10px;
}

.menu-toggle span {
    display: block;
    height: 2px;
    background: #289CFF;
    border-radius: 999px;
    margin: 5px 0;
}

.drawer-mask {
    position: fixed;
    inset: 0;
    background: rgba(36,52,71,0.38);
    z-index: 9998;
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease;
}

.mobile-drawer {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 84vw;
    max-width: 320px;
    background: #FFFFFF;
    z-index: 10000;
    transform: translateX(-105%);
    transition: transform .25s ease;
    box-shadow: 18px 0 34px rgba(36,52,71,0.18);
    overflow-y: auto;
}

.drawer-open {
    overflow: hidden;
}

.drawer-open .drawer-mask {
    opacity: 1;
    pointer-events: auto;
}

.drawer-open .mobile-drawer {
    transform: translateX(0);
}

.drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px;
    border-bottom: 1px solid rgba(40,156,255,0.12);
}

.drawer-close {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    color: #289CFF;
    background: rgba(40,156,255,0.10);
    font-size: 24px;
    line-height: 1;
}

.drawer-nav {
    display: grid;
    padding: 12px;
    gap: 6px;
}

.drawer-nav a {
    padding: 12px 14px;
    border-radius: 14px;
    color: #4E5F7A;
    font-weight: 700;
}

.drawer-nav a.active,
.drawer-nav a:hover {
    color: #289CFF;
    background: rgba(40,156,255,0.10);
}

.mobile-bottom-nav {
    display: none;
}

.site-footer {
    background: #243447;
    color: #EAF3FF;
    margin-top: 60px;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 42px 18px 28px;
    display: grid;
    grid-template-columns: 1.6fr repeat(3, 1fr);
    gap: 28px;
}

.footer-brand p,
.footer-note p {
    color: rgba(234,243,255,0.78);
}

.footer-col {
    display: grid;
    align-content: start;
    gap: 8px;
}

.footer-col h3 {
    color: #FFFFFF;
}

.footer-col a {
    color: rgba(234,243,255,0.82);
}

.footer-note {
    border-top: 1px solid rgba(234,243,255,0.12);
    max-width: 1200px;
    margin: 0 auto;
    padding: 18px;
}

.legal-strip {
    background: #F5F7FB;
    border: 1px solid rgba(40,156,255,0.16);
    border-radius: 22px;
    padding: 22px;
    color: #66788A;
}

@media (max-width: 1100px) {
    .nav-core {
        gap: 14px;
    }

    .floating-service {
        display: none;
    }
}

@media (max-width: 900px) {
    .site-main {
        padding-top: 76px;
        padding-bottom: 76px;
    }

    .header-inner {
        min-height: 76px;
        gap: 12px;
        display: grid;
        grid-template-columns: 48px 1fr auto;
    }

    .menu-toggle {
        display: inline-block;
    }

    .logo {
        justify-content: center;
    }

    .logo img {
        max-height: 46px;
    }

    .nav-core,
    .channel-bar {
        display: none;
    }

    .register-btn {
        min-width: 76px;
        height: 38px;
        padding: 0 16px;
    }

    .banner-slider {
        height: 230px;
        margin: 18px 18px 30px;
        border-radius: 18px;
    }

    .grid-2,
    .grid-3,
    .grid-4,
    .guide-card,
    .split-card,
    .zone-row,
    .app-section,
    .app-section .info-card,
    .notice-grid,
    .inner-hero,
    .footer-inner {
        grid-template-columns: 1fr;
    }

    .section-block {
        margin: 34px auto;
    }

    .inner-hero {
        margin: 18px;
        padding: 24px;
    }

    .mobile-bottom-nav {
        position: fixed;
        left: 12px;
        right: 12px;
        bottom: 12px;
        z-index: 8500;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 8px;
        padding: 8px;
        border-radius: 22px;
        background: rgba(255,255,255,0.94);
        box-shadow: 0 14px 36px rgba(56,92,138,0.18);
        border: 1px solid rgba(40,156,255,0.14);
    }

    .mobile-bottom-nav a {
        text-align: center;
        border-radius: 16px;
        padding: 8px 2px;
        color: #66788A;
        font-size: 13px;
        font-weight: 700;
    }

    .mobile-bottom-nav a.active,
    .mobile-bottom-nav a:hover {
        color: #289CFF;
        background: rgba(40,156,255,0.10);
    }
}

@media (max-width: 560px) {
    .banner-slider {
        height: 190px;
    }

    .slider-arrow {
        width: 34px;
        height: 34px;
        font-size: 20px;
        line-height: 34px;
    }

    .card,
    .info-card,
    .review-card,
    .faq-item,
    .notice-card {
        padding: 20px;
    }

    .guide-card {
        padding: 22px;
    }

    .image-card img,
    .zone-card img {
        height: 150px;
    }
}